MPX1124_synpic51530: There is a lesion near the lateral geniculate body on the patient&#39;s left with contrast enhancement. Posterior (distal) to the LGB the optic radiations for the superior and inferior portions of the visual hemi-field separate - so a lesion may affect only one quarter of the field - a "quadrant- anopsia".

MPX1124_synpic51530: There is a lesion near the lateral geniculate body on the patient&#39;s left with contrast enhancement. Posterior (distal) to the LGB the optic radiations for the superior and inferior portions of the visual hemi-field separate - so a lesion may affect only one quarter of the field - a "quadrant- anopsia".